Premixing burner block for partial oxidation processes

Abstract

The present application relates to a burner block ( 1 ) comprising a base ( 2 ), a plurality of hydrocarbon channels ( 3 ) for the passage of hydrocarbon/air mixtures used as reactants, and at least one oxygen channel ( 4 ) for the passage of air or an air/oxygen mixture. An ignition burner ( 5 ) is optionally present. The burner block allows the combustion of hydrocarbons for the preparation of acetylene at temperatures of <1400° C.

We claim:  
     
         1 . A burner block ( 1 ) having a base ( 2 ), a plurality of hydrocarbon channels ( 3 ) for passage of hydrocarbon/oxygen mixtures used as reactants, and at least one oxygen channel ( 4 ) for the passage of air, oxygen or an air/oxygen mixture.  
     
     
         2 . A burner block as claimed in  claim 1 , wherein the oxygen channel ( 4 ) is surrounded by a plurality of hydrocarbon channels ( 3 ).  
     
     
         3 . A burner block as claimed in  claim 1 , wherein the oxygen channel ( 4 ) is surrounded concentrically by hydrocarbon channels ( 3 ).  
     
     
         4 . A burner block as claimed in  claim 1 , wherein an ignition burner ( 5 ) is present.  
     
     
         5 . A burner block as claimed in one of  claim 1 , wherein a mixing chamber ( 6 ) is present upstream of the burner block ( 1 ).  
     
     
         6 . The method of the preparation of acetylene/synthesis gas mixtures from hydrocarbons and oxygen at temperatures below  1400 ° C., wherein a burner block as claimed in  claim 1  is used.  
     
     
         7 . The method as claimed in  claim 6 , wherein the acetylene/synthesis gas mixture is selected from the group consisting of acetylene/methanol synthesis gas, acetylene/ammonia synthesis gas, acetylene/hydrogen rich gas, acetylene/carbon monoxide rich gas, acetylene/oxo gas and acetylene/ethylene synthesis gas.  
     
     
         8 . The method as claimed in  claim 6 , wherein a hydrocarbon/oxygen mixture which is not ignitable at the prevailing temperature enters the burner block.  
     
     
         9 . The method as claimed in claims  6 , wherein the hydrocarbon employed is methane, natural gas, liquid gas, petroleum ether, an aromatic mixture, pyrolysis benzine or residue oil.  
     
     
         10 . The method as claimed in  claim 8 , wherein the hydrocarbon/oxygen mixture enters the burner block at room temperature and comprises >60% by volume of methane.  
     
     
         11 . The method of the preparation of synthesis gas mixtures from hydrocarbons and oxygen under conditions under which the acetylene yield disappears, wherein a burner block as claimed in  claim 1  is used.